The mugshot of Fred Couch, father of Ethan Couch. He has been arrested for impersonating a police officer. / WFAA

by Marjorie Owens, WFAA-TV, Dallas-Fort Worth

by Marjorie Owens, WFAA-TV, Dallas-Fort Worth

The father of Ethan Couch, the 16-year-old who gained national attention for using the "affluenza" defense in court and then receiving probation after killing four in a drunken-driving accident, has been arrested in Texas for allegedly impersonating a police officer.

Authorities in North Richland Hills, a Fort Worth suburb, arrested Frederick Anthony Couch on Tuesday, saying he posed as a Lakeside reserve officer at the scene of a disturbance call July 28, reports WFAA.

Police said Frederick Couch led an officer to his vehicle, and according to the arrest warrant, Couch said his "Lakeside police stuff" was inside. He told the officer he was a reserve officer for the Lakeside police.

"Couch reached into his vehicle and took out his wallet displaying what appeared to be a police badge and identification card, suggesting he was a police officer," North Richland Hills investigator K. Bauman said. "Upon completion of the call, all subjects involved were allowed to leave the location."

Couch was arrested Tuesday and later released on a $2,500 bond, WFAA reports.

Couch is not nor ever has been a reserve officer for Lakeside, and he is not licensed as a peace officer in Texas.

His son, Ethan Couch, was sentenced to 10 years of probation for a drunken-driving crash that killed four people and injured nine others. At the trial, a psychologist testified that he was a product of "affluenza," where his family felt that wealth bought privilege and there was no rational link between behavior and consequences.